Supersaturated design is a form of fractional factorial design and has recently received much interest because of its potential in factor screening experiments. This paper mainly concerns the existing criteria for mixed-level designs, i.e. the [chi]2(D) criterion (for design D) proposed by...

Minimum aberration and clear criteria are two important rules for selecting optimal fractional factorial designs, in both unblocked and blocked cases. In this paper, we first show that under some given conditions, a blocked design DB=(D,B) having blocked minimum aberration is equivalent to D...

Recently, Xu and Wu (2001) presented generalized minimum aberration criterion for comparing and selecting general fractional factorial designs. This criterion is defined using a set of χ<Subscript> u </Subscript>(D) values, called J-characteristics by us. In this paper, we find a set of linear equations that relate...</subscript>

L<sc>i</sc> P.-F. Horizontal versus vertical learning: divergence and diversification of lead firms in the Hangji toothbrush cluster, China, <italic>Regional Studies</italic>. Horizontal networking between competitors has long been under-conceptualized in cluster research. Combining labour mobility/spill-offs, friendship...